Inventor · disambiguated record
Yoshiaki Iwahara
Also filed as: IWAHARA YOSHIAKI
15 granted patents·500 citations·filing 1984–1996
95Inventor score
Files withHITACHI LTD15
Top patents by PatentIndex Score
15 records- 0191US5085495AMulti-screen projectorHITACHI LTD·Filed 1991·Granted Feb 4, 1992·45 cites·25 claims
- 0290US4919518AMulti-screen projectorHITACHI LTD·Filed 1989·Granted Apr 24, 1990·36 cites·45 claims
- 0386US5611611ARear projection type display systemHITACHI LTD·Filed 1995·Granted Mar 18, 1997·70 cites·9 claims
- 0486US5537171ALiquid crystal projection displayHITACHI LTD·Filed 1994·Granted Jul 16, 1996·73 cites·20 claims
- 0583US4895429ARear projection apparatusHITACHI LTD·Filed 1988·Granted Jan 23, 1990·20 cites·6 claims
- 0680US5355187ALiquid crystal projection displayHITACHI LTD·Filed 1993·Granted Oct 11, 1994·50 cites·8 claims
- 0780US5011277AMulti-screen projectorHITACHI LTD·Filed 1990·Granted Apr 30, 1991·57 cites·26 claims
- 0878US5758940ALiquid crystal Projection displayHITACHI LTD·Filed 1996·Granted Jun 2, 1998·59 cites·16 claims
- 0978US5200854ALarge-screen projection-type displayHITACHI LTD·Filed 1992·Granted Apr 6, 1993·19 cites·10 claims
- 1066US5365369ATwo dimensional moire reduction type projection displayHITACHI LTD·Filed 1993·Granted Nov 15, 1994·12 cites·4 claims
- 1163US5870225ARear projection type display systemHITACHI LTD·Filed 1996·Granted Feb 9, 1999·23 cites·13 claims
- 1263US4969731ALiquid crystal panel type projection displayHITACHI LTD·Filed 1990·Granted Nov 13, 1990·22 cites·20 claims
- 1357US4729031ACoupling system for image projectionHITACHI LTD·Filed 1984·Granted Mar 1, 1988·9 cites·3 claims
- 1436US5467221AMulti-screen projectorHITACHI LTD·Filed 1994·Granted Nov 14, 1995·2 cites·13 claims
- 1529US5412437AProjection type display deviceHITACHI LTD·Filed 1993·Granted May 2, 1995·3 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →